
.nav-top {
    height: 80px;
    background-color: white;
    box-shadow: 0px 10px 9px 1px rgba(17, 17, 17, 0.15);
    border-radius: 40px;
    z-index: 2;
    transform: translateY(-50%);
    ul {
        display: flex;
        justify-content: space-around;
        align-items: center;
        li{
            font-family: 'Microsoft YaHei';
            font-size: 20px;
            line-height: 80px;
            a{
                color: #000;
            }
            a:hover{
                border-bottom:1px solid var(--m-color) ;
                color: var(--m-color);
              }
        }
        .on{
            border-bottom:1px solid var(--m-color) ;
            color: var(--m-color);
        }
         
    }
}